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Testing results of longitudinal CCP donor specimens on Ortho and Roche assays/platforms (n = 133). (A) Ortho assays/platform results, (B) Roche assays/platform results. Black lines represent weighted geometric means for 0–60 and 100+ time periods for each assay. 95% confidence intervals, calculated using a bootstrapping method, are shown in red for each assay’s weighted geometric mean at each time period.
